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(No Mo'del.)

- H. E. PRIDMORE.

MO'WING MAGHINE.

' PatentedDeo.19,1882.

I I I n WITNESSES IIVVENTOH Henry lZjmdmare.

/ 2 any WW BY ms flrra/ewirs 0 a mw/ UNrrEn STATES PATENT Cl rice,

HENRY E. PRIDMORE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE IHOCOR- MICK HARVESTING MACHINE COMPANY, OF SAME PLACE.

MOWlNG-MACHINEf SPECIFICATION forming part of Letters Patent No. 269,232, dated December 19, 1882.

Application filed September 19, 1882. (No model.)

To all whom z-t may concern:

Be it known that I, HENRY E. PRIDMORE,

of Illinois, have invented certain new and useful Improvements in Harvesting-Machines, of which the following is a specification.

My invention relates to mechanism for the up and down adjustment of the grain-wheel or caster to change the height of the outside divider and of the grain end of the platform. In reapers this wheel is usually supported upon two pivotsthe first a vertical or nearly vertical one between a segmental adjusting-plate and a casting bolted to the outside divider, and the second horizontal, between the immediate snpporting-arm for the wheel and said segment, means being employed to lock the supporting-arm atagreater or less height upon v the latter relatively to the platform, and to per- -mit its adjustment thereon.

Such construction leaves only the vertical pivot normally tree, the purpose of this being to permit the grain-wheel and its support to swing out from the grain-board or divider in backing orin turning corners, and the purpose of the second pivot having relation only to the adjustment between the wheel and its pivotal-attachment tothe segment with a spring-bolt, which takes into any one of a series of adjusting-holes in the segment arranged upon an arc concentric with the pivot, between it and said arm, the bolt being retracted by hand and the platform being lifted or lowered either by ajaclt or by hand. In anoiherand perhaps preferabletorm a lever is provided projecting rearwardly beyond the grain-wheel and latching into a rack upon the arc of the segment. The former has this disadvantage, that the normal labor and difficulty in making adjustment is very great, owing to the weight ofthe platform, and in the latter the projecting end of the lever is often in the way, and is liable to be broken in practical use in the field. In my invention I lock the supporting-arm to the segment by means of the bolt taking into the series of adjustingholes, and in order to bring the adjustment under easy control I insert between the arm and the segment a short crank, the spindle of which is seated in a bearing in one-preferably the armand a wrist-pin from which takes into an elongated slot or recess in the other, so that by applying a key or wrench the crank may be turned whenever the bolt has been retracted, and move the arm relativcly to the segment until a proper adjustment has been reached, when the bolt will be again allowed to spring into one of the adjust- 6o ing-holes. p

In the drawings, Figure 1 is a side elevation of so much of the grain end of a harvester, including the divider, as is necessary to a complete understanding of my invention. Fig. 2 6 is a transverse section on the line 2 '2 of Fig.

1, through the casting attached to the divider, pivoted segment, and caster or grain wheel support, showing also a key to operate the, crank. Fig. 3 is a detail of the inside of the grain-wheel support, and Fig.4isa detailof the opposing face of the segment.

A is the divider, and B acasting bolted firmly thereto and provided with ears b, which receive between them the pivot-sleeve c of the segmentC, and are also bored for the passage of the vertical pivot-pin 0, upon which said segment hinges. An arm, D, supporting at its rear end the axle of the grain-wheel E, and covering and protecting its hub with a projecting rib or sand-band, e, is secured to the segment close to the joint, between the latter and the divider, by means of a horizontal pivot,

d, being preferably formed for this purpose with a sleeve, (1, which passes through a bore in the segment, and with a cylindrical ledge or flange, (1 taking over a stub, 0 on said segment, so as to make a strong joint, which a bolt, (1 having a broad head resting upon the .surface of the segment and passing through 0 the sleeve, serves to complete.

Near the outer edge of the segment are a series of holes or perforations, 0 arranged on an arc concentric with the pivot, between it and the grain-wheelsupport,fto receiveaspringbolt, 0, carried by the latter in a suitable socket and provided with a button, whereby it may be withdrawn at any time from the hole in which it is resting and allowed to spring into another, according to the adjustment of the wheel.

Inside of the grain-wheel support is formed a chamber, ii to receive a crank, F, the spindlefof which takes into a bearing,f, in said support, and the wrist-pinf therefrom enters an elongated slot or recess, 0 in the segment, laid at right angles, or substantially so, to the pivot of said segment. When this crank is turned by any suitable means, provided the bolt-connection 6 between the support and the segment has been withdrawn, it will tend to move the support up or down, according to the direction of its revolution. For the purpose of thus actuating it any suitable means may be providedsnch as a wrench fitting over a square or polygonal head on its spindle, or a key fitting into a polygonal recess in said spindle. In the present instance I have shown the latter as employed, G being the key, and g the recess. This key is of course provided with an arm of sutficient length to afford a reasonable leverage to the attendant, who will, in adjusting the machine, first insert it into its seat and steady it, and ease the pressure with one hand, while he withdraws the spring-bolt with the other, and will then either bear upon it in a direction calculated to raise the platform, or else will control its movement as the crank is pressed by the superincumbent weight to allow the platform to descend until the desired adjustment is reached, when the bolt will be allowed to spring into one of the series of holes and lock the supporting-arm against further movement upon its immediate pivot.

The crank is, for economy of space and material and for greater efliciency in adjusting the grain-wheel support through a long reach by a slight movement, located between the pivot of said support and the spring-bolt. It may of course be located outside of the latter; but in such case the segment must be extended to att'ord a bearing for the wrist-pin,-and a larger crank must be used. The spring-bolt may also be replaced by a latch or other device taking into a rack upon the segment, and the joint between the latter and the divider may be omitted without departing from the essence of my invention.

1 claim- 1. The combination, substantially as hereinbefore set forth, of the grain-wheel, its supporting-arm, the segment to which said arm is pivoted, means for locking said armin any adjusted position upon the segment, and a. crank interlying said arm and segment, with its wrist-pin taking into a slot in the one and its spindle having a bearing in the other, and provided as to its spindle with means for the reception of a key or equivalent instrumentality, whereby it may be turned.

2. The combination, substantially as hereinbefore set forth, of the grain-wheel, its supporting-arm, the segment to which the latter is pivoted, the series of holes in said segment, the spring-bolt moun ted'in the supporting-arm, the crank interlying the arm and segment. with its wrist-pin taking into a slot in one and its spindle entering a bearing in the other, and a key or equivalent device adapted to enter a seat in said spindle to turn the crank when the bolt is withdrawn.

3. The combination, substantially as hereinbefore set forth, of the grain-wheel, its supporting-arm, the segment to which the arm is pivoted, the joint between said segment and the divider, means for locking the supportingarm in any given position upon the segment, the crank interlying the arm and segment, with its wrist-pin taking into an elongated slot in one and its spindle entering a bearing in the other,

and the key or equivalent device adapted to turn said spindle and crank to adjust the supporting-arm relatively to the segment when the locking device is withdrawn.

4. The combination, substantially as hereinbefore set forth, of the grain-wheel, its supporting-arm, the segment to which the latter is pivoted, thejoint between said segment and the divider, the series of holes in the segment, the spring-bolt on the supporting-arm adapted to take into any one of the said holes, the crank seated in a chamber in the supportingarm, between it and the segment, with its wristpin taking into an. elongated slot in one and its spindle entering a bearing in the other, and the polygonal seat in said spindle adapted to receive a key, whereby the arm may be adjusted relatively to the segmentwhen the spring-bolt is withdrawn.

5. The combination of the caster-wheel support, the sleeve and cylindrical ledge cast thereon, the segment with its bore to receive said sleeve and its stub to fit within said ledge, and the bolt uniting the two.

HENRY E. PRIDMORE.

\Vitnesses:

JOHN V. A. HASBROOK, J AS. H. SHIELDS. 

